Brown the ground beef in a large stock pot. When beef is cooked throughly, drain fat off and and set to the side. Dice the onion and bell pepper. Heat olive oil in stock pot. Saute veggies in the oil. When the onions turn translucent, add the beef back to the pot. Then pour in both cans of beans and the tomatoes. Bring this mixture to a boil. Add seasonings to your own taste. I like it hot!